Using the throttle 75% of the time and my speed varies depending on the terrain I'm averaging 25 miles on one battery.Critter tunnels? How far can you go with each battery Wrench?
I change the battery as soon as it shows one bar of power left. So I could probably stretch a few more miles out of it if I wanted.
I have never completely drained a battery yet.
Now, if I was to pedal in PAS 1 or 2, I could probably reach 40 maybe 45 miles on one battery. (never tried yet)
But that's why I got two batteries so I don't kill myself trying to increase the range of one battery.